CN108050975A - Railway Press Fit Device for Wheelset laser measurement distance between backs of wheel flanges mechanism - Google Patents

Abstract

The invention discloses a laser measuring wheel-set inner distance mechanism of a railway wheel-set press-fitting machine, and relates to the technical field of wheel-set press-fit equipment. Including the base, the two ends of the top surface of the base are respectively fixedly connected with a left fixed column and a right fixed column, a movable column is arranged between the left fixed column and the right fixed column, and a main pressure driven by the first hydraulic cylinder is arranged on the right fixed column. head; the movable column is provided with an auxiliary pressure head coaxial with the main pressure head; a wheel set is arranged between the main pressure head and the auxiliary pressure head; A pendulum driven by a pendulum oil cylinder is respectively provided, and a supporting device is provided between the axle of the wheel set and the bottom plate. The present invention measures the inner distance of the wheel set through the left measuring lifting rod and the right measuring lifting rod, and then controls the press-fitting of the wheel set by the press-fitting machine, effectively avoiding the deformation and displacement of the pull plate from causing damage to the press-fitting of the wheel set. The impact of the wheel set is improved, and the press-fitting efficiency of the wheel set is improved, and the labor intensity of the workers is reduced.

Description

Laser Measuring Wheelset Inner Distance Mechanism for Railway Wheelset Pressing Machine

technical field

The invention belongs to the technical field of wheel set press-fitting equipment, in particular to a laser measuring wheel-set inner distance mechanism of a railway wheel set press-fitting machine.

Background technique

In the production process of railway locomotives, it is necessary to use a press-fitting machine to press-fit the wheelset, and in the process of press-fitting, it is necessary to accurately control the inner distance of the wheelset, so as to ensure that the pressed-fitted wheelset meets the national standard Requirements, that is, the inner distance of the national standard wheel set is kept between 1352 mm and 1354 mm.

In the prior art, a set of measuring mechanism is installed on the top of the press-fitting machine to effectively measure the inner distance of the wheel set, and then control the press-fitting of the press-fitting machine to the wheel set; for example, the open application number in China is CN201520511508.8, In the utility model named as the railway wheel set pressing machine follow-up measuring inner distance mechanism, the left floating measuring rod and the right floating measuring rod respectively follow the movement of the inner surface of the left wheel and the inner surface of the right wheel to realize the wheel set This method cannot effectively eliminate the influence of the deformation and displacement produced by the drawing plate or the pressing machine on the two floating measuring rods to measure the inner distance of the wheel pair, and the method is cumbersome and cannot effectively improve the pressure of the wheel pair. Therefore, it is necessary to study a ranging mechanism that can avoid the error effect caused by deformation and displacement and can accurately measure the inner distance of the wheel set.

Contents of the invention

The object of the present invention is to provide a laser measuring mechanism for the inner distance of the wheel pair of the railway wheel pair pressing machine, which can measure the inner distance of the wheel pair through the left measuring lifting rod and the right measuring lifting rod, and then control the pressing process of the pressing machine to the wheel pair , effectively avoiding the influence of the deformation and displacement of the drawing plate or press-fitting machine on the press-fitting of the wheel set, and solving the cumbersome ranging method of the existing wheel-set inner distance mechanism, low work efficiency, and the inability to avoid the deformation or displacement of the main beam on the wheel Issues affecting medial distance results.

In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:

The present invention is a laser measuring wheel inner distance mechanism for a railway wheel pair pressing machine, comprising a base, the two ends of the top surface of the base are respectively fixedly connected with a left fixed column and a right fixed column, between the left fixed column and the right fixed column A movable column is provided, and a main pressure head driven by the first hydraulic cylinder is arranged on the right fixed column; an auxiliary pressure head coaxial with the main pressure head is arranged on the movable column; the main pressure head and the A wheel set is arranged between the auxiliary rams, and a pendulum driven by a pendulum oil cylinder is respectively arranged between the axle end face of the wheel set and the main ram and the auxiliary ram, and a pendulum driven by a pendulum cylinder is arranged between the axle and the bottom plate of the wheel set. There is a support device; the top surface of the left fixed column and the right fixed column is fixedly connected with a main beam, and the side of the main beam is provided with a left measuring lifting rod and a right measuring lifting rod, and the top surface of the main beam A grating ruler is provided, and the bottom ends of the left measuring lifting rod and the right measuring lifting rod are located between the two wheels of the wheel set; the left measuring lifting rod and the wire on the first ball screw arranged on the main beam The nut is fixedly connected; the right measuring lifting rod is fixedly connected with the nut on the second ball screw arranged on the main beam, and the end face of the first ball screw and the end face of the second ball screw are respectively connected with the first The output shaft of the stepping motor and the second stepping motor is fixedly connected; the left measurement lifting rod includes a second hydraulic cylinder, a measuring rod and a first laser measuring head, and the second hydraulic cylinder is fixedly connected on the first ball screw On the screw nut on the top, the end face of the hydraulic rod of the second hydraulic cylinder is fixedly connected with a measuring rod, and the bottom end of the measuring rod is provided with a number of first laser measuring heads; the right measuring lifting rod includes a third hydraulic cylinder , the second measuring rod and the second laser measuring head, the third hydraulic cylinder is fixedly connected to the nut on the second ball screw, and the end face of the hydraulic rod of the third hydraulic cylinder is fixedly connected to the second measuring rod, so The bottom end of the second measuring rod is provided with several second laser measuring heads; the grating ruler includes a grating fixed ruler and a grating moving ruler, and the grating fixed ruler is fixedly connected to the top surface of the main beam. The moving ruler is fixedly connected to the top surfaces of the second hydraulic cylinder and the third hydraulic cylinder.

Further, the support device includes a symmetrically arranged mobile vehicle body, the top surface of the mobile vehicle body is movably connected with a bracket through bolts, and the top surface of the bracket is fixedly connected with a V-block.

Further, the central axis of the axle on the wheel set is parallel to the central axis of the main pressure head.

Further, the two ends of the first ball screw and the two ends of the second ball screw are respectively rotatably connected with fixing rings, and the fixing rings are fixedly connected to the side of the main beam.

The present invention has the following beneficial effects:

1. The rotation of the first ball screw of the present invention can realize the movement of the left measuring elevating rod, the rotation of the second ball screw can realize the movement of the right measuring elevating rod, and cooperate with the grating ruler to lift the left measuring elevating rod and the right measuring elevating rod The calculation of the space absolute coordinate position of the rod on the press-fitting machine can make the left measuring lifting rod and the right measuring lifting rod meet the measurement of the inner distance of wheelsets of different specifications, which improves the working efficiency and practicability of the wheel-set pressing machine.

2. The present invention uses the end face of the pendulum as the measurement zero point, and in the process of wheel set press-fitting, the distance between the inner surface of the wheel set and the measurement zero point is measured by the laser measuring head to realize the press-fit control of the press-fitting machine, while the left measurement The lifting rod and the right measuring lifting rod are not in contact with the wheel set, so there will be no contact deformation, and the measurement accuracy of the inner distance of the wheel set is high, avoiding the unloading work of the wheel set after press-fitting, and reducing the labor of workers Strength, improve work efficiency.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the structural schematic diagram of the laser measuring wheel-to-inner distance mechanism of the railway wheel-to-pressing machine of the present invention;

Fig. 2 is a partial top view of the present invention;

Fig. 3 is the structural representation of the left measuring elevating rod of the present invention;

In the accompanying drawings, the list of parts represented by each label is as follows:

1-base, 2-left fixed column, 3-right fixed column, 4-movable column, 5-pendulum cylinder, 6-pendulum, 7-support equipment, 8-main beam, 9-grating ruler, 301-main Indenter, 401-auxiliary indenter, 801-left measuring lifting rod, 802-right measuring lifting rod, 803-the first ball screw, 804-the second ball screw, 805-the first stepping motor, 806-the first Two stepper motors, 8011-second hydraulic cylinder, 8012-measuring rod, 8013-laser measuring head.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In describing the present invention, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surrounding" etc. Indicating orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention .

As shown in Figures 1-3, the present invention is a laser measuring wheel-to-inner distance mechanism for a railway wheel-to-pressing machine. A movable column 4 is arranged between the fixed column 2 and the right fixed column 3;

The right fixed column 3 is provided with a main pressure head 301 driven by the first hydraulic cylinder; the movable column 4 is provided with an auxiliary pressure head 401 coaxial with the main pressure head 301 .

A wheel set is arranged between the main pressure head 301 and the auxiliary pressure head 401, and a pendulum 6 driven by a pendulum oil cylinder 5 is arranged between the axle end face of the wheel set and the main pressure head 301. When pressing the left wheel of the wheel set, When installing, the pendulum oil cylinder 5 on the auxiliary ram 401 drives the pendulum 6 to rotate 90 degrees, so that the pendulum 6 is not between the auxiliary ram 401 and the left end face of the axle, and the same between the axle end face of the wheel set and the auxiliary ram 401. A pendulum 6 driven by a pendulum cylinder 5 is also arranged between them. When pressing the right wheel of the wheel set, the pendulum cylinder 5 on the main pressure head 301 drives the pendulum 6 to rotate 90 degrees, so that the pendulum 6 Not between the main pressure head 301 and the right end surface of the axle, but between the axle of the wheel set and the bottom plate 1, there is a support device 7, which provides a moving function for the wheel set, thereby facilitating the pressing of the wheel set;

The top surfaces of the left fixed column 2 and the right fixed column 3 are fixedly connected with a main beam 8, and the side of the main beam 8 is provided with a left measuring elevating rod 801 and a right measuring elevating rod 802, and the top surface of the main beam 8 is provided with a grating Chi 9, the bottom ends of the left measuring elevating rod 801 and the right measuring elevating rod 802 are all positioned between the two wheels of the wheel set;

The left measuring lifting rod 801 is fixedly connected with the nut on the first ball screw 803 arranged on the main beam 8; the right measuring lifting rod 802 is fixed with the nut on the second ball screw 804 arranged on the main beam 8 connection, the end face of the first ball screw 803 and the end face of the second ball screw 804 are fixedly connected with the output shafts of the first stepping motor 805 and the second stepping motor 806 respectively, and according to actual work requirements, the first stepping motor 805 and the second stepping motor 806 can use servo motors instead, and the first stepping motor 805 can drive the first ball screw 803 to rotate, and then realize the movement of the left measuring elevating rod 801 in the horizontal direction, the second stepping motor 806 can drive the second ball screw 804 to rotate, and then realize the movement of the right measuring lifting rod 802 in the horizontal direction;

The left measurement lifting rod 801 includes a second hydraulic cylinder 8011, a measuring rod 8012 and a first laser measuring head 8013. The second hydraulic cylinder 8011 is fixedly connected to the screw nut on the first ball screw 803, and the hydraulic rod of the second hydraulic cylinder 8011 The end face is fixedly connected with a measuring rod 8012, and the bottom end of the measuring rod 8012 is provided with two first laser measuring heads 8013, and the first laser measuring heads 8013 are used to detect the pendulum 6 on the inner side of the left wheel of the wheel pair to the auxiliary pressure head 401. The distance between the zero points of the end faces; the right measuring lifting rod 802 includes a third hydraulic cylinder, a second measuring rod and a second laser measuring head, the third hydraulic cylinder is fixedly connected to the nut on the second ball screw, and the third The end face of the hydraulic rod of the hydraulic cylinder is fixedly connected with the second measuring rod, and the bottom end of the second measuring rod is provided with two second laser measuring heads. The distance between the zero points on the end faces of the pendulum 6;

The grating ruler 9 includes a grating fixed ruler and a grating movable ruler. The grating fixed ruler is fixedly connected to the top surface of the main beam 8, and the grating movable ruler is fixedly connected to the top surfaces of the second hydraulic cylinder 8011 and the third hydraulic cylinder. The grating ruler 9 Through the vertical distance between the fixed scale of the grating and the moving scale of the grating, the spatial absolute coordinate positions of the left measuring elevating rod 801 and the right measuring elevating rod 802 on the press-fitting machine can be effectively measured.

Wherein, the supporting device 7 includes a symmetrically arranged mobile car body, the top surface of the mobile car body is movably connected with a bracket through bolts, and the top surface of the bracket is fixedly connected with a V-shaped block that is adapted to the side surface of the wheel set axle.

Wherein, the central axis of the axle on the wheel set is parallel to the central axis of the main pressure head 301 .

Wherein, the two ends of the first ball screw 803 and the two ends of the second ball screw 804 are respectively rotatably connected with fixed rings, and the fixed rings are fixedly connected to the side of the main beam 8 .

A specific application of this embodiment is:

Before press-fitting the wheelset, the measuring system of the press-fitting machine is started, the first stepping motor 805 drives the first ball screw 803 to rotate, and then the left measuring lifting rod 801 moves horizontally, and the second stepping motor 806 drives the second ball screw 804 rotates, and then realizes that the right measuring lifting rod 802 moves in the horizontal direction, and the grating ruler 9 measures the space absolute coordinate positions of the left measuring lifting rod 801 and the right measuring lifting rod 802 on the press-fitting machine, so that the left measuring lifting rod 801 and the right measuring lifting rod 802 The distance of the right measuring lifting rod 802 is the inner distance of the standard wheel set after pressing;

When pressing the left wheel of the wheel set, the pendulum oil cylinder 5 on the auxiliary ram 401 drives the pendulum 6 to rotate 90 degrees, so that the pendulum 6 is not between the auxiliary ram 401 and the left end surface of the axle, and then passes through the first A hydraulic cylinder drives the main pressure head 301 to press-fit the left wheel of the wheel pair. When the first laser measuring head 8013 on the left measuring lifting rod 801 detects that the distance between the inner surface of the left wheel of the wheel pair and the zero point of the end face of the pendulum 6 is equal to the set value, the main pressure head 301 stops working, and the press-fitting of the left wheel of the wheel set is completed;

When starting to press-fit the right wheel of the wheel pair, the pendulum oil cylinder 5 on the main pressure head 301 then drives the pendulum 6 to rotate 90 degrees, so that the pendulum 6 is not between the main pressure head 301 and the right end surface of the axle. And then through the first hydraulic cylinder to drive the main pressure head 301 to press the right wheel of the wheel pair, when the second laser measuring head on the right measuring lifting rod 802 detects that the distance between the inner surface of the right wheel of the wheel pair and the zero point of the pendulum 6 end face is equal to When the set value is set, the main pressure head 301 stops working, and the right wheel pressing of the wheel set is completed;

And the supporting equipment 7 then transports the wheels to the next process point.

In the description of this specification, descriptions with reference to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments are not exhaustive in all detail, nor are the inventions limited to specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (4)

1. railway Press Fit Device for Wheelset laser measurement distance between backs of wheel flanges mechanism, including pedestal (1), the top surface both ends of the pedestal (1) Be respectively fixedly connected with left vertical columns (2) and right vertical columns (3), the left vertical columns (2) and right vertical columns (3) it Between be provided with active column (4), it is characterised in that：

The main pressure head (301) driven by first hydraulic cylinder is provided on the right vertical columns (3)；

The secondary pressure head (401) with main pressure head (301) coaxial inner conductor is provided on the active column (4)；

Wheel pair, the axle end face and main pressure head of the wheel pair are provided between the main pressure head (301) and secondary pressure head (401) (301) pendulum (6) driven by pendulum oil cylinder (5) is respectively provided between secondary pressure head (401), the wheel is to axle and bottom Support equipment (7) is provided between seat (1)；

Girder (8), the side of the girder (8) are fixedly connected on the top surface of the left vertical columns (2) and right vertical columns (3) Left measurement elevating lever (801) and right measurement elevating lever (802) are provided on face, grating is provided on the top surface of the girder (8) The bottom of ruler (9), the left measurement elevating lever (801) and right measurement elevating lever (802) is respectively positioned between two wheels of wheel pair；

Screw on the left measurement elevating lever (801) and the first ball screw (803) being arranged on girder (8), which is fixed, to be connected It connects；The right measurement elevating lever (802) is fixedly connected with the screw on the second ball screw (804) being arranged on girder (8), The end face of first ball screw (803) and the end face of the second ball screw (804) respectively with the first stepper motor (805) and The output shaft of second stepper motor (806) is fixedly connected；

The left measurement elevating lever (801) includes second hydraulic cylinder (8011), measuring rod (8012) and first laser measurement head (8013), the second hydraulic cylinder (8011) is fixedly connected on the screw on the first ball screw (803), second hydraulic pressure The hydraulic pressure rod end surface of cylinder (8011) is fixedly connected with measuring rod (8012), the measuring rod (8012) if bottom terminal ends be provided with Dry first laser measurement head (8013)；

The right measurement elevating lever (802) includes the 3rd hydraulic cylinder, the second measuring rod and second laser measurement head, the 3rd liquid Cylinder pressure is fixedly connected on the screw on the second ball screw, and the hydraulic pressure rod end surface of the 3rd hydraulic cylinder is fixedly connected with second Measuring rod, the bottom terminal ends of second measuring rod are provided with several second laser measurement heads；

The grating scale (9) includes grating scale and grating moves ruler, and the grating scale is fixedly connected on the top surface of girder (8) On, the grating moves ruler and is fixedly connected on the top surface of second hydraulic cylinder (8011) and the 3rd hydraulic cylinder.

2. railway Press Fit Device for Wheelset laser measurement distance between backs of wheel flanges mechanism according to claim 1, which is characterized in that described Support equipment (7) includes symmetrically arranged moving body, and the top surface of the moving body is connected with stent by bolt, institute It states and is fixedly connected on the top surface of stent with taking turns the V-block being adapted to axle week side.

3. railway Press Fit Device for Wheelset laser measurement distance between backs of wheel flanges mechanism according to claim 1, which is characterized in that described Take turns the central axes to upper axle and the axis parallel on main pressure head (301).

4. railway Press Fit Device for Wheelset laser measurement distance between backs of wheel flanges mechanism according to claim 1, which is characterized in that described The both ends of first ball screw (803) and the both ends of the second ball screw (804) are rotatably connected to retainer ring, the fixation respectively Ring is fixedly connected on the side of girder (8).